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- W3081889401 abstract "The path to understanding star formation processes begins with the study of the formation of molecular clouds. The outskirts of these clouds are characterized by low column densities that allow the penetration of ultraviolet radiation, resulting in a non-negligible ionization fraction and the charging of the small dust grains that are mixed with the gas; this diffuse phase is then coupled to the ambient magnetic field. Despite the general assumption that dust and gas are tightly correlated, several observational and theoretical studies have reported variations in the dust-to-gas ratio toward diffuse and cold clouds. In this work, we present the implementation of a new charged particles module for analyzing the dust dynamics in molecular cloud envelopes. We study the evolution of a single population of small charged grains (0.05 $mu$m) in the turbulent, magnetized molecular cloud envelope using this module. We show that variations in the dust-to-gas ratio arise due to the coupling of the grains with the magnetic field, forming elongated dust structures decoupled from the gas. This emphasizes the importance of considering the dynamics of charged dust when simulating the different phases of the interstellar medium, especially for star formation studies." @default.
- W3081889401 created "2020-09-08" @default.
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- W3081889401 creator A5066230158 @default.
- W3081889401 creator A5067537221 @default.
- W3081889401 date "2021-02-01" @default.
- W3081889401 modified "2023-10-14" @default.
- W3081889401 title "Formation of Dust Filaments in the Diffuse Envelopes of Molecular Clouds" @default.
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- W3081889401 doi "https://doi.org/10.3847/1538-4357/abcda1" @default.
- W3081889401 hasPublicationYear "2021" @default.
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